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201.56 201.56 USD 251.95

251.95

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Jeep Wrangler JK / JKU 07-18 2pc Cruise Series Rear Upper Adjustable Control Arms

SKU: CRS-J-JK-RU2
Fits: 2007 - 2018 Jeep Wrangler JK / JKU Add vehicle

201.56 201.56 USD 251.95

251.95

Starting at $110/mo or 0% APR with . See if you qualify

Build Your Kit

  • Vehicle
    Confirm this matches your vehicle. Use Shop by Vehicle to filter correctly.
  • Brand
  • Color
    Powder coat color for control arms and track bars. Does not affect performance.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • Note to Core4x4:

Select Color to see price and add to cart.

4–8 hr install Moderate Alignment recommended Lifetime warranty on all non-wear items Made In USA

Optimized Rear Suspension Control

Upgrade the stability, alignment, and suspension performance of your Jeep Wrangler JK with the Cruise Series Rear Upper Control Arms. Designed to enhance durability and improve ride quality, these control arms outperform stock components, offering better strength and adjustability for lifted vehicles. If you're experiencing driveline vibrations, poor pinion angles, or rear-end instability, these adjustable rear upper control arms provide a crucial upgrade to restore proper suspension geometry.

What’s Included in the Kit?

  • Cruise Series Rear Upper Control Arms (CRS-J-JK-RU2)

Key Features and Benefits

  • Heavy-Duty Steel Tubing Construction – Built from durable steel tubing to handle the toughest off-road conditions while maintaining on-road comfort.
  • Fully Adjustable for Lifted Vehicles – Accommodates lifts from 0 to 6 inches, allowing precise pinion angle correction and rear axle re-centering.
  • Improves Drivability Reduces Wear – Helps address driveline vibrations, reducing stress on suspension components and extending tire life.
  • Tapered Polyurethane Bushings – Designed to provide smooth articulation, improved ride quality, and long-lasting performance.
  • Complete Rear-End Alignment Solution – For maximum control and proper geometry, pair with Cruise Series Rear Lower Control Arms (CRS-J-JK-RL2).

For lifts beyond 6 inches, contact us for custom solutions.

Durable Two-Stage Powder Coating

All control arms undergo a two-stage powder coating process to enhance longevity and corrosion resistance: Zinc primer base coat – Provides superior rust protection. Durable top coat – Available in 10 color options for added personalization.

Proudly Made in the USA

Manufactured in Orem, UT, the Cruise Series Rear Upper Control Arms are built to the highest American standards, ensuring quality, reliability, and performance.

Effortless Installation

Designed for bolt-on installation using factory hardware. If dealing with rusted or worn-out bolts, we offer optional Grade 8 hardware kits separately for a seamless upgrade.

In Conclusion

The Cruise Series Rear Upper Control Arms are a must-have upgrade for Jeep Wrangler JK owners looking to optimize rear axle alignment, eliminate driveline vibrations, and improve suspension articulation. When paired with Rear Lower Control Arms, this setup provides a fully adjustable rear suspension solution for lifted Jeeps.

Upgrade today and take control of your Jeep’s performance!


Make Model Submodel Years
Jeep Wrangler 2007 - 2018

Each rebuild kit includes all necessary components to replace and restore wearable parts.

Vehicle Jeep Wrangler JK / JKU (07–18)
Brand CORE 4X4
Color Black or Blue or Charcoal or Green or LightGreen or Orange or Purple or Red or White or Yellow or Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Hardware No Hardware or Complete Kit
Series Cruise Series

See It Installed

Install videos and build guides on our YouTube channel.

Watch more installs on YouTube
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Reviews from Google

See all on Google
5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
AP
Ajay Paynter Mar 4, 2026
Google
Great company, who worked with me on shipping parts to arrive in time for a show. When I explained my concern they went above and beyond to make it happen. Quality of the parts is top notch.
RC
Ryan Colligan Mar 4, 2026
Google
I have nothing but good things to say about Core 4x4. I have the crawler series on my JKU and we take it all over the place. These parts handle everything we throw at them.
MT
Marcus Torres Jan 15, 2026
Google
Best control arms I have installed on any of my builds. After running every major manufacturer, Core 4x4 is on par or better than all the high-end companies at a fraction of the cost. Lifetime warranty is the cherry on top.
MR
Melanee Raynes Mar 25, 2019
Google
Awesome product and service! I even got some of their swag because it looked pretty darn good. I will definitely be going back and would suggest this business to others looking for quality control arms. Buy local!
B
Ben Mar 24, 2021
Google
2001 Wrangler TJ- i have purchased all front/rear upper/lower control arms. Front track bar and rear track bar. Quality is excellent and extremely durable you can tell its built to last. Bent a bolt on the front track bar and called and spoke with Spence. He immediately sent me out new hardware plus some! Product is amazing but what really separates companies apart is their service and these guys are second to none. Thank you all!
N
Nick Sep 24, 2025
Google
I have a 2016 RAM 1500 Crew Cab and I replaced the rear upper and lower control arms also the pan hard track bar and also the sway bar and links for the rear with all I had the articulating bushings. The vehicle now has no body role. They are absolutely incredible if you get the control arms you gotta get the CORE 4 x 4sway bar end links don’t don’t try and be cheap and get Moog or something else you got to get articulating bushings get the core 4 x 4 ones they are the best. My truck drives now through the canyons like a BMW. I have Fox high-performance shocks on there as well with all the CORE 4 x 4 suspension parts and they are amazing. Well worth the money I would highly recommend anybody thinking about CORE 4 x 4 go with CORE 4X4 and if you can go with their articulating bushings, they’re unbelievable drives better now than my Escalades. Well planted no body role and smooth on the Highway unbelievable the difference they all made!! THANKS AGAIN CORE 4x4!!!!
JJ
JT JT Dec 23, 2025
Google
We have all shopped places where the person on the phone makes you feel like they don't have the time to talk to you the customer or answer your questions. I can tell you first hand that's not Core 4x4. They have the best customer service I have seen so far. They have taken the time to respond to all of my questions in a very prompt and professional manner, taking the time to answer each and every question I have had. Lets put it this way if Core 4x4 sells a product I am wanting for my truck I will buy it from them, I highly recommend Core 4x4.
C
Chris Oct 24, 2025
Google
Great product for a good price. Customer service is top notch, I had an issue which was self cause and Core 4x4 helped me out even though it was my own fault. Would definitely recommend and use them again.
J
Justin Mar 24, 2021
Google
Small business, family owned, made in the USA, lifetime warranty. Purchased Tier 3 control arms and rear track bar for a 2006 Jeep LJ. Simple website and easy to contact over phone and email. I had some technical questions and they were happy to answer them. They allow local pickup and were built to order same week. The order was wrapped and ready when I walked in and even gave a tour of the shop. They abrasive blast all raw materials to achieve a better surface profile for powdercoat to adhere and create a smooth, durable finish. I also noticed several CNC machines and a robotic welder they use for all their parts. A small outfit with a robotic welder? Their concern for quality is obvious and it shows in the parts they make. Very impressed. Happy to do business with these guys.
PB
Peter Busack May 27, 2025
Google
Purchased a set of Trailing arms for my Ram 1500, quality is first class. I bought the ones with the Jonny Joints for more articulation and it appears from the construction I should get a lifetime of use, Zerk fittings are an added plus. Would defiantly recommend, and the the service team answered all of my questions.
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